Mossberg 590A1 Mariner

[meno377]

Ok this problem might be my fault. I never cleaned and oiled the gun before I fired it for the first time. I will clean it and oil it and give it another go in a few days.

The mariner 590A1 is tight. Just go out and shoot it more and put a drop of oil on the channels where the action tubes ride on. I think the finish of the mariners make them tighter than other 500 590A1s. I have quite a few mossbergs and both the 590 and 590A1 mariners I have are both tight.

[Brown Rock]

Looks like that new replacement bolt from Mossberg doesn’t work.
The old bolt screws in some and then stops. This new bolt doesn’t even turn. Maverick 88 bolt still works though . I think I’m going to contact Mossberg and tell them about the issues I am having. If they want me to ship it to them, cool. Another member on here mentioned having the same exact issues on his 590A1 Mariner. He said it locked up when shooting heavy loads like 00 Buck. They replaced his barrel and magazine tube.

[meno377]

Looks like that new replacement bolt from Mossberg doesn’t work.
The old bolt screws in some and then stops. This new bolt doesn’t even turn. Maverick 88 bolt still works though . I think I’m going to contact Mossberg and tell them about the issues I am having. If they want me to ship it to them, cool. Another member on here mentioned having the same exact issues on his 590A1 Mariner. He said it locked up when shooting heavy loads like 00 Buck. They replaced his barrel and magazine tube.

Inspect the threads closely on the original, maverick, and the new bolt. It's odd that one bolt would work yet another doesn't if the threads all look the same. Also you had the original stock with the original bolt installed, try that again. Are the lengths exactly the same between the three bolts? If they are, something doesn't make sense. I think it may be either cross threading or the bolt that you say stops, try a little more strength to turn it more.

[FeuerFrei]

OP
Try to chase the threads with new/original bolt while leaving stock off.
You'll get a better idea of what's going on.
There may be thread locker in there.??
For testing purposes you can improvise a washer with aluminum foil wrapped under the bolt head.
Acts as a spacer.


Sent using a long string and 2 Dixie cups

[Brown Rock]

Inspect the threads closely on the original, maverick, and the new bolt. It's odd that one bolt would work yet another doesn't if the threads all look the same. Also you had the original stock with the original bolt installed, try that again. Are the lengths exactly the same between the three bolts? If they are, something doesn't make sense. I think it may be either cross threading or the bolt that you say stops, try a little more strength to turn it more.

[Dan_Eastvale]

My 590A1 purchased in 2012 was new and cleaned prior to use. Not a mariner. Never experienced extraction issues. In fact the opposite.. very positive extraction. But the original military finish is different from the mariner. Could that make a difference? Doubtful Mossy QC has gone downhill like so many others.

[Brown Rock]

My 590A1 purchased in 2012 was new and cleaned prior to use. Not a mariner. Never experienced extraction issues. In fact the opposite.. very positive extraction. But the original military finish is different from the mariner. Could that make a difference? Doubtful Mossy QC has gone downhill like so many others.

Maybe it is the Marinecote that is causing the shells to stick? I contacted the other member on here about his 590A1 Mariner. He said it took Mossberg two tries to get it fixed. 10 weeks the first time and 3 weeks on the second. From reading their return policy I have to pay for shipping?

[Brown Rock]

Couple of pictures of the stuck shell. I had to smack the butt of the stock on the ground to get the action open.

[I Swan]

I've owned or own about 3 Marinecote Mossberg shotguns and versions like that from Winchester and Remington and Ithaca and none had/have that problem. All were purchased used though. Maybe they require break in?

[Brown Rock]

I've owned or own about 3 Marinecote Mossberg shotguns and versions like that from Winchester and Remington and Ithaca and none had/have that problem. All were purchased used though. Maybe they require break in?

[Brown Rock]

Back from the dead this thread is. Just wanted to share that I went shooting with my brother yesterday, first time I went shooting since I made this thread almost 3 years ago. Decided to try out the 590A1 again. Still having extraction issues with the Tula Suprema ammo. It is hard to pump the shotgun after firing the rounds. I tried some high brass stuff and that was fine. My brothers Maverick 88 has no issues with the Suprema, weird.

[W.R.Buchanan]

By taking the gun apart and deburring all the internal parts and mainly the op rods you can cut your break in time down to almost nothing.

This isn't that hard to do, and the gun will be a joy to shoot instead of a sticky PITB>

Randy